Carrie Underwood and Steven Tyler ACM Awards Duet

American Idol champ Carrie Underwood and American Idol judge Steven Tyler rock out on stage in 2011 Academy of Country Upcoming Music Awards held at the MGM Grand Garden Arena on Sunday (April 3) in Las Vegas conducted Nevada. The duo Carrie's hit Undo It and Steven's classic Walk This Way. On the red carpet, Carrie had a purple-licious Jean Fares dress, Dana Davis, shoes, and jewels Sutra. During her performance, They wore an Alice + Olivia tailored dress.